{"id":"vidhyamitra:day:1666-07-01:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1666-07-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1666-07-01","date_display":"July 1, 1666 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1666,"month":7,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329735.770833,"kali_year":4768,"ahargana":1741270.2708,"sun":{"sidereal_longitude":80.4583,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":63.8988,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.4404,"elapsed_within_tithi_degrees":7.4404},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":63.8988,"elapsed_within_degrees":10.5654},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.3571},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":1666,"month":7,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2329735.770833,"ahargana":1741270.2708,"kali_year":4768,"ayanamsa_lahiri":19.1943,"grahas":{"sun":{"sidereal_longitude":80.03361799999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"moon":{"sidereal_longitude":64.401118,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":-1.1804},"mars":{"sidereal_longitude":172.18211799999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":63.22931799999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":343.616618,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":102.563718,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":273.41941799999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":79.1215,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":259.1215,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1666,"month":7,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329735.770833,"kali_year":4768,"ahargana":1741270.2708,"sun":{"sidereal_longitude":80.4583,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":63.8988,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":343.4404,"elapsed_within_tithi_degrees":7.4404},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":63.8988,"elapsed_within_degrees":10.5654},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.3571},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.18,"elongation":16.56},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.18,"opposition_distance":163.44}},"eclipse_window_40days":[{"offset_days":15,"type":"lunar","occurs":true,"moon_latitude":-1.227,"opposition_distance":0.5}]},"calendars":{"vikram_samvat":1723,"vikram_samvatsara":"Siddhārthī","saka_samvat":1588,"saka_samvatsara":"Parābhava","bengali_samvat":1073,"malayalam_era":842,"nanakshahi_year":197,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Caturdaśī · Vikram 1723 Siddhārthī · Śaka 1588 Parābhava"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1666-07-01T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga July 1, 1666 CE · Vidhyamitra","description":"Vedic pañchāṅga for July 1, 1666 CE: Kṛṣṇa Caturdaśī · Mṛgaśīrṣā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1666-07-01","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1666-07-01","sa":"https://sa.vidhyamitra.com/day/1666-07-01","hi":"https://hi.vidhyamitra.com/day/1666-07-01","x-default":"https://vidhyamitra.com/day/1666-07-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T23:53:51.294Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-04T23:53:51.294Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}